Toboggan (牝 1925 鹿毛 Hurry On)
 |-- Bobsleigh (牡 1932 栗毛 Gainsborough)
 |-- Hydroplane (牝 1938 栗毛 Hyperion)
 |   |-- Fly Off (牝 1943 栗毛 Sun Teddy)
 |   |   `-- Flying Rings (牝 1949 栗毛 War Admiral)
 |   |-- Citation (牡 1945 鹿毛 Bull Lea)
 |   |-- Unbelievable (牡 1949 鹿毛 Bull Lea)
 |   |-- Siena Way (牝 1952 鹿毛 Bull Lea)
 |   |   `-- Prince's Gate (牝 1957 鹿毛 Sun Again)
 |   `-- St. Crispin (牡 1953 Bull Lea)
 |-- Evenlode (牝 1939 鹿毛 Hyperion)
 |   `-- Valentine's Brook (牝 1948 栗毛 Signal Light)
 |       `-- ハードコース Hard Course [英] (牝 1956 黒鹿毛 Hard Sauce)
 `-- Winter Sport (牝 1941 鹿毛 Hyperion)
     `-- Snow Line (牝 1948 鹿毛 Ujiji)
         `-- Snowdrift (牝 1957 黒鹿毛 Petition)